Classification
Product TypeRaw Material
Product FormSolid crystalline mineral (rock salt)
Industry PositionPrimary Mineral Commodity (food ingredient and industrial feedstock)
Raw Material
Market
Rock salt (HS 2501) in China is supplied primarily from domestic well/mine (井矿盐) resources alongside sea-salt and lake-salt production, supporting both household food use and large industrial demand. Retail edible salt is governed by national edible-salt standards and a national iodized-salt policy designed to prevent iodine deficiency disorders. Imports of salt intended for food use must comply with Chinese laws and national food safety standards and are subject to customs oversight under China’s import/export food safety measures and, where applicable, overseas producer registration requirements. Because salt is bulky with a low value-to-weight ratio, cross-border movement and inland distribution are freight-cost sensitive and typically handled via sea-to-land multimodal logistics.
Market RoleMajor producer and domestic consumer market; predominantly self-supplied with both import and export flows for HS 2501
Domestic RoleEssential food ingredient (table salt, including iodized salt) and major industrial input (notably for chemical industry salt use)
SeasonalitySupply is generally available year-round; the product is non-perishable and can be stored for extended periods when kept dry.
Specification
Primary VarietyWell/mine salt (井矿盐) — rock salt / underground brine derived
Secondary Variety- Sea salt (海盐)
- Lake salt (湖盐)
Physical Attributes- Crystal size/granulation (coarse vs fine) aligned to intended use
- Whiteness/appearance and low visible impurities
- Low caking tendency supported by moisture control and, where used, permitted anti-caking agents
Compositional Metrics- Sodium chloride content (NaCl) and limits for relevant impurities per applicable edible-salt standards
- Moisture and insoluble matter controls for handling and consumer acceptance
- Iodine content control for iodized edible salt where required under China’s iodized-salt program
Grades- Edible (food-grade) salt vs industrial-grade salt (use-dependent requirements)
- Iodized vs non-iodized edible salt (policy- and channel-dependent)
Packaging- Moisture-protective packaging to prevent clumping during storage and distribution
- Bulk packaging for industrial buyers; smaller retail packs for household table salt
Supply Chain
Value Chain- Rock salt/brine source → crushing/washing or brine purification → evaporation/refining (e.g., vacuum salt for well/mine salt) → drying → (optional) iodization/fortification for edible salt programs → packaging → wholesale/industrial distribution → retail and end-users
Temperature- No cold chain required; storage focuses on keeping product dry to prevent caking and quality deterioration.
Atmosphere Control- Humidity control and moisture-barrier packaging reduce clumping and maintain free-flowing properties.
Shelf Life- Long shelf life when kept dry; humidity exposure can cause caking and handling issues.
Freight IntensityHigh
Transport ModeMultimodal
Risks
Regulatory Compliance HighSalt intended for food use can be delayed, rejected, or subject to corrective actions at the border if it does not conform to China’s national food safety standards and import food safety management measures, or if intended-use (edible vs industrial) and iodization expectations are mis-declared or not supported by documentation.Lock intended use and applicable standard set pre-contract; align product specs and labelling to relevant China standards; keep batch COA and compliance dossier ready for customs inspection under China’s import/export food safety rules.
Logistics MediumFreight rate volatility and inland transport costs can materially change landed cost because salt is freight-intensive (bulky, low value-to-weight), affecting competitiveness and margin for cross-border supply into China.Prioritize bulk sea freight with optimized packaging, plan port-to-inland routing early, and use longer-term freight arrangements where feasible for program business.
Food Safety MediumNatural mineral salts can carry variable impurity profiles (e.g., insoluble matter or contaminants) and may require tighter control for food-grade applications; nonconforming batches increase the likelihood of buyer claims or customs noncompliance findings.Implement incoming and pre-shipment testing aligned to the target standard (China edible-salt standards and/or Codex food-grade salt standard as a reference) and use controlled moisture packaging to preserve quality.
FAQ
What HS code is commonly used to classify rock salt and other salt in trade with China?Salt (including table salt and denatured salt) and pure sodium chloride is classified under HS heading 2501, with a 6-digit subheading of 250100 in HS 2017.
Is iodized salt required in China for consumer table salt?China’s iodized-salt regulation (State Council Decree No. 163, as revised) establishes long-term supply of iodized edible salt as the primary public-health measure to eliminate iodine deficiency disorders, with controlled exceptions in specific cases.
Which standards are typically referenced for edible salt quality and compliance in China?China’s edible salt quality and compliance commonly reference GB/T 5461-2016 (Edible salt) and GB 2721-2015 (National Food Safety Standard — Edible salt), alongside customs import/export food safety management rules for imported food products.